sperm doner 

man who does not use protection condomswhen in sexual intercourse and has had more than 2 kids

my dad is a sperm doner dis nigga got 12 kids and pay child support 4 all of them

sperm doner by clement parkes March 28, 2008

sperm doner day 

Sperm doner day falls on march 2nd. This holiday gives all rights to aim there middle fingers towards (dead beat dads). Also known as a piece of shit male that acts like a selfish prick and refuses to take responsibility for his offspring.

Its sperm doner day lets get out our cells and send a family finger to your worthless sperm doner

sperm doner day by Meganator84 June 18, 2017

spermdonor

when a father is not involved in their childs life AT ALL.

counselor:how do u feel about ur father?
child:hes a piece of shit? i dont claim him as my father hes more like a spermdonor.

spermdonor by ONLY CHILD September 27, 2006

Spermdozer 

A guy that ejaculates for no apparent reason at night.

Guy 1: Dude, i woke up and my boxers were sticky.
Guy 2: Dude, sounds like you're a Spermdozer.

Spermdozer by VaginaFucker69 February 5, 2012